    # TIP3P water
    # M. W. Mahoney and W. L. Jorgensen, J. Chem. Phys. 112, 8910 (2000)
    # https://doi.org/10.1063/1.481505
    # Note: This force field requires a correpsonding &G3X3 constraint section
    #       in &MOTION / &CONSTRAINT
    &FORCEFIELD
      &BEND
        ATOMS HW OW HW
        K [kcalmol*rad^-2] 0.0
        KIND harmonic
        THETA0 [deg] 104.52
      &END BEND
      &BOND
        ATOMS OW HW
        K [kcalmol*Angstrom^-2] 0.0
        KIND harmonic
        R0 [Angstrom] 0.9572
      &END BOND
      &CHARGE
        ATOM OW
        CHARGE -0.834
      &END CHARGE
      &CHARGE
        ATOM HW
        CHARGE +0.417
      &END CHARGE
      &NONBONDED
        &LENNARD-JONES
          ATOMS HW HW
          EPSILON [kcalmol] 0.0
          SIGMA [Angstrom] 1.0
          RCUT [Angstrom] 12.0
        &END LENNARD-JONES
        &LENNARD-JONES
          ATOMS OW HW
          EPSILON [kcalmol] 0.0
          SIGMA [Angstrom] 1.0
          RCUT [Angstrom] 12.0
        &END LENNARD-JONES
        &LENNARD-JONES
          ATOMS OW OW
          EPSILON [kcalmol] 0.1521
          SIGMA [Angstrom] 3.15061
          RCUT [Angstrom] 12.0
        &END LENNARD-JONES
      &END NONBONDED
    &END FORCEFIELD
